4 ms·

Isn't the point of "Cloud" computing, high availability, high uptime? If there's a hardware failure on your "cloud machine" it just fails, and there's no recove

Isn't the point of "Cloud" computing, high availability, high uptime? If there's a hardware failure on your "cloud machine" it just fails, and there's no recovery. This sounds like just regular hosting and not cloud hosting, please correct me if I'm misunderstanding how this is set up.

Gracana 12y ago
Individual nodes can be unreliable (and therefore very cheap), availability is maintained by distributing load to on-line nodes. That's my understanding of it, anyway.
- contingencies 12y ago
  The technique is known as 'high availability' (HA) or 'fail over' clustering. https://en.wikipedia.org/wiki/High-availability_cluster https://en.wikipedia.org/wiki/High-availability_cluster 'Cloud' computing is simply another term meaning "using someone else's infrastructure as a service" (IaaS), which is essentially a restatement of the centralized computing paradigm. http://en.wikipedia.org/wiki/Centralized_computing http://en.wikipedia.org/wiki/Centralized_computing The gaping problems with such paradigms (chiefly survivability/evolvability over time) were well highlighted for large scale, general systems by the internet itself, RFC3439 (2002) puts it thus: Upgrade cost of network complexity: The Internet has smart edges ... and a simple core. Adding an new Internet service is just a matter of distributing an application ... Compare this to voice, where one has to upgrade the entire core. My take: cloud computing is about to get smart edges; cloud providers are about to be commodified; and we are about to effect an appropriately flexible layer of additional abstraction to the entire field of computing that will further push us towards a position in which we treat computation as any other service and networked communication itself as a means of economic exchange.

4 ms·

Isn't the point of "Cloud" computing, high availability, high uptime? If there's a hardware failure on your "cloud machine" it just fails, and there's no recove

by vorotato 12y ago

Gracana 12y ago
Individual nodes can be unreliable (and therefore very cheap), availability is maintained by distributing load to on-line nodes. That's my understanding of it, anyway.
- contingencies 12y ago
  The technique is known as 'high availability' (HA) or 'fail over' clustering. https://en.wikipedia.org/wiki/High-availability_cluster https://en.wikipedia.org/wiki/High-availability_cluster 'Cloud' computing is simply another term meaning "using someone else's infrastructure as a service" (IaaS), which is essentially a restatement of the centralized computing paradigm. http://en.wikipedia.org/wiki/Centralized_computing http://en.wikipedia.org/wiki/Centralized_computing The gaping problems with such paradigms (chiefly survivability/evolvability over time) were well highlighted for large scale, general systems by the internet itself, RFC3439 (2002) puts it thus: Upgrade cost of network complexity: The Internet has smart edges ... and a simple core. Adding an new Internet service is just a matter of distributing an application ... Compare this to voice, where one has to upgrade the entire core. My take: cloud computing is about to get smart edges; cloud providers are about to be commodified; and we are about to effect an appropriately flexible layer of additional abstraction to the entire field of computing that will further push us towards a position in which we treat computation as any other service and networked communication itself as a means of economic exchange.